<template>
  <a-layout>
    <a-layout-content
            :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <p>
        <a-form layout="inline" :model="param">
<!--          <a-form-item>-->
<!--            <a-button type="primary" @click="handleQuery()">-->
<!--              查询-->
<!--            </a-button>-->
<!--          </a-form-item>-->
          <a-form-item>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </a-form-item>
        </a-form>
      </p>
      <a-table
              :columns="columns"
              :row-key="record => record.id"
              :data-source="level1"
              :loading="loading"
              :pagination="false"
              @change="handleTableChange"
      >
        <template #cover="{ text: cover }">
          <img v-if="cover" :src="cover" alt="avatar" />
        </template>
<!--        <template v-slot:category="{ text, record }">-->
<!--          <span>{{ getCategoryName(record.category1Id) }} / {{ getCategoryName(record.category2Id) }}</span>-->
<!--        </template>-->
        <template v-slot:action="{ text, record }">
          <a-space size="small">
            <a-button type="primary" @click="edit(record)">
              编辑
            </a-button>
            <a-popconfirm
                    title="删除后不可恢复，确认删除?"
                    ok-text="是"
                    cancel-text="否"
                    @confirm="handleDelete(record.id)"
            >
              <a-button type="danger">
                删除
              </a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </a-table>
    </a-layout-content>
  </a-layout>

  <a-modal
          title="分类表单"
          v-model:visible="modalVisible"
          :confirm-loading="modalLoading"
          @ok="handleModalOk"
  >
    <a-form :model="category" :label-col="{ span: 6 }" :wrapper-col="{ span: 18 }">
      <a-form-item label="名称">
        <a-input v-model:value="category.name" />
      </a-form-item>

      <a-form-item label="父分类">
        <a-select  v-model:value="category.parent" show-search  optionFilterProp="label" ref="select">

          <a-select-option value="0">无</a-select-option>

          <a-select-option v-for="c in level1" :key="c.id" :value="c.id" :label="c.name" :disabled="category.id === c.id">{{c.name}}</a-select-option>

        </a-select>
      </a-form-item>
      <a-form-item label="顺序">
        <a-input v-model:value="category.sort" />
      </a-form-item>
    </a-form>
  </a-modal>
</template>

<script lang="ts">
  import { defineComponent, onMounted, ref } from 'vue';
  import axios from 'axios';
  import { message } from 'ant-design-vue';
  import {Tool} from "@/util/tool";
  import {forEach} from "wangeditor/dist/utils/util";

  export default defineComponent({
    name: 'AdminCategory',
    setup() {
      const param = ref();
      param.value = {};
      const categorys = ref();
      const loading = ref(false);

      const columns = [
        {
          title: '名称',
          dataIndex: 'name'
        },
        {
          title: '父分类',
          key: 'parent',
          dataIndex: 'parent'
        },
        {
          title: '顺序',
          dataIndex: 'sort'
        },
        {
          title: 'Action',
          key: 'action',
          slots: { customRender: 'action' }
        }
      ];

      /**
       * 数据查询
       **/
      const handleQuery = () => {
        loading.value = true;
        // 如果不清空现有数据，则编辑保h存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
        categorys.value = [];
        axios.get("/category/all").then((response) => {
          loading.value = false;
          const data = response.data;
          if (data.success) {
            categorys.value = data.content;

            // 重置分页按钮

          } else {
            message.error(data.message);
          }
        });
      };



      // -------- 表单 ---------
      /**
       * 数组，[100, 101]对应：前端开发 / Vue
       */
      const categoryIds = ref();
      const category = ref();
      const modalVisible = ref(false);
      const modalLoading = ref(false);
      const handleModalOk = () => {
        modalLoading.value = true;
        axios.post("/category/save", category.value).then((response) => {
          modalLoading.value = false;
          const data = response.data; // data = commonResp
          if (data.success) {
            modalVisible.value = false;

            // 重新加载列表
            handleQueryCategory();
          } else {
            message.error(data.message);
          }
        });
      };

      /**
       * 编辑
       */
      const edit = (record: any) => {
        modalVisible.value = true;
        category.value = Tool.copy(record);
        categoryIds.value = [category.value.category1Id, category.value.category2Id]
      };

      /**
       * 新增
       */
      const add = () => {
        modalVisible.value = true;
        category.value = {};
      };

      //删除
      const handleDelete = (id: number) => {
        axios.delete("/category/delete/" + id).then((response) => {
          const data = response.data; // data = commonResp
          if (data.success) {
            // 重新加载列表
            handleQueryCategory();
          } else {
            message.error(data.message);
          }
        });
      };

      const level1 =  ref();
       let categories: any;
      /**
       * 查询所有分类
       **/
      const handleQueryCategory = () => {
        loading.value = true;
        axios.get("/category/all").then((response) => {
          loading.value = false;
          const data = response.data;
          if (data.success) {
            categories = data.content;
            console.log("原始数组：", categories);

            level1.value = [];
            level1.value = Tool.array2Tree(categories, 0);
            console.log("树形结构：", level1.value);

            // 加载完分类后，再加载分类，否则如果分类树加载很慢，则分类渲染会报错
            handleQuery();
          } else {
            message.error(data.message);
          }
        });
      };
      // const getCategoryName = (cid: number) => {
      //   // console.log(cid)
      //   let result = "";
      //   categorys.forEach((item: any) => {
      //     if (item.id === cid) {
      //       // return item.name; // 注意，这里直接return不起作用
      //       result = item.name;
      //     }
      //   });
      //   return result;
      // };

      onMounted(() => {
        handleQueryCategory();
      });

      return {
        param,
        //categorys,
        columns,
        loading,
        handleQuery,
        edit,
        add,
        category,
        modalVisible,
        modalLoading,
        handleModalOk,
        categoryIds,
        level1,

        handleDelete
      }
    }
  });
</script>

<style scoped>
  img {
    width: 50px;
    height: 50px;
  }
</style>
